CN102705007A

CN102705007A - Monitoring system for explosion door of coal mine air shaft

Info

Publication number: CN102705007A
Application number: CN2012101738080A
Authority: CN
Inventors: 赵树元
Original assignee: XIANGYUAN SHUYUAN ELECTRICAL APPLIANCE CO Ltd
Current assignee: XIANGYUAN SHUYUAN ELECTRICAL APPLIANCE CO Ltd
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2012-10-03

Abstract

The invention discloses a monitoring system for an explosion door of a coal mine air shaft, and belongs to the technical field of coal mine ventilation safety and coal mine automatic monitoring systems. The technical problem to be solved is to provide a real-time automatic monitoring system for the explosion door of the coal mine air shaft. The technical scheme is that: the monitoring system for the explosion door of the coal mine air shaft comprises a sensor group, a camera, a programmable logic controller (PLC) and a monitoring center computer, wherein the sensor group is arranged on the explosion door of the coal mine air shaft; the signal output end of the sensor group is connected with the input end of an intrinsically safe input isolation module; the signal output end of the camera is connected in series with a video processor, and then is connected with the input end of the intrinsically safe input isolation module; the output end of the intrinsically safe input isolation module is connected with a signal input port of the PLC; the communication end of the PLC is connected with the monitoring center computer of a coal mine monitoring center through an optical cable; and the PLC is also connected with a display screen. The monitoring system is applied to the field of coal mines.

Description

Coal mine air-shaft explosion proof door monitoring system

Technical field

Coal mine air-shaft explosion proof door monitoring system of the present invention belongs to coalmine ventilation safety and colliery Automatic monitoring systems technical field.

Background technology

The coal mine air-shaft explosion proof door is mounted in the special seal door on the air draft well head of ventilation fan, and when normal the ventilation, it is used to barrier wells downstream and surface air, prevents distinguished and admirable short circuit, guarantees that ventilation system is normal; Do not have in traditional colliery Automatic monitoring systems the watch-dog about the ventilating shaft explosion proof door is set, cause and to carry out automatically-monitored to the ventilating shaft explosion proof door; Existing coal mine air-shaft explosion proof door in case the explosion proof door of blasting very easily is destroyed or flies away from well head, can't recover in the short time to ventilate; Can't discharge methane gas; Lose the time of the relief of speedily carrying out rescue work, the life security that seriously jeopardizes the underground work personnel has enlarged the disaster consequence.

Summary of the invention

The present invention overcomes the deficiency that prior art exists, and technical problem to be solved is: provide a kind of the coal mine air-shaft explosion proof door is carried out automatically-monitored system.

For solving the problems of the technologies described above; The technical scheme that the present invention adopted is: coal mine air-shaft explosion proof door monitoring system; Comprise: sensor groups, camera, PLC and Surveillance center's computer; Said sensor groups includes air velocity transducer, carbon monoxide transducer, Smoke Sensor, firedamp sensor, temperature pick up and positive/negative pressure sensor, and the sensor is installed on the coal mine air-shaft explosion proof door, and the signal output part of sensor groups links to each other with the input of intrinsic safety input isolation module;

Also be provided with camera on the said coal mine air-shaft explosion proof door, link to each other with the input of intrinsic safety input isolation module behind the said signal at output end of camera serial connection video processor, the output of said intrinsic safety input isolation module links to each other with the signal input port of PLC;

The communication terminal of said PLC links to each other with the Surveillance center's computer that is installed in the mine supervision center through optical cable, and PLC also is connected with display screen.

Said coal mine air-shaft explosion proof door is equipped with explosion proof door control motor, and the control end of said explosion proof door control motor links to each other with the signal output port of PLC.

Said PLC, intrinsic safety input isolation module, video processor and display screen are installed in the explosion-proof PLC switch board, and said explosion-proof PLC switch board is provided with the explosion-proof window of observing display screen.

Said Surveillance center computer also is connected with background server.

The beneficial effect that the present invention compared with prior art has is: the present invention with the PLC switch board as control core; Display screen, monitoring host computer are for showing and main operating equipment; The signal that obtains through the collection of PLC switch board, analyte sensors group; Actions such as control ventilating shaft explosion proof door is realized opening, resetted, natural ventilation and inverted ventilation locking; Realize the automation control of ventilating shaft explosion proof door, and can improve the automation safety management level in whole colliery through in the existing comprehensive automation looped network in the seamless access of communication network colliery.

Description of drawings

Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention:

Fig. 1 is an electrical block diagram of the present invention.

The specific embodiment

As shown in Figure 1; Coal mine air-shaft explosion proof door monitoring system of the present invention; Comprise: sensor groups 1, camera 2, PLC3 and Surveillance center's computer 4; Sensor groups 1 includes air velocity transducer, carbon monoxide transducer, Smoke Sensor, firedamp sensor, temperature pick up and positive/negative pressure sensor, and the sensor is installed on the coal mine air-shaft explosion proof door, and the signal output part of sensor groups 1 links to each other with the input of intrinsic safety input isolation module 5; Also be provided with camera 2 on the coal mine air-shaft explosion proof door, signal output part serial connection video processor 6 backs of camera 2 link to each other with the input of intrinsic safety input isolation module 5, and the output of intrinsic safety input isolation module 5 links to each other with the signal input port of PLC3; The communication terminal of PLC3 links to each other with the Surveillance center's computer 4 that is installed in the mine supervision center through optical cable, and PLC3 also is connected with display screen 7.

Sensor groups 1 included various kinds of sensors is used to detect signals such as near the wind speed of coal mine air-shaft explosion proof door, carbon monoxide, smog, gas temperature and pressure, and 5 pairs of sensor groups of intrinsic safety input isolation module, 1 detected signal carries out being transferred to PLC3 again after intrinsic safety is handled; Camera 2 is used to obtain the real-time video of ventilating shaft explosion proof door, and 6 pairs of real-time videos of video processor are handled, and processed video is transferred to PLC3 via intrinsic safety input isolation module 5; PLC3 carries out analyzing and processing to sensor signal and vision signal, and on display screen 7, shows as the control core of whole monitoring system, and the signal after PLC3 will handle simultaneously is transferred to Surveillance center's computer 4, realizes monitoring in real time, guarantees safety.

Explosion proof door control motor 8 is installed on the coal mine air-shaft explosion proof door; The control end of explosion proof door control motor 8 links to each other with the signal output port of PLC3; Explosion proof door control motor 8 is carried out the control signal that PLC3 sends; Be used to control that the coal mine air-shaft explosion proof door is realized opening, resetted, actions such as natural ventilation and inverted ventilation locking, realize the automatic control of ventilating shaft explosion proof door.

PLC3, intrinsic safety input isolation module 5, video processor 6 and display screen 7 are installed in the explosion-proof PLC switch board; Reduce the interference of external environment condition to monitoring system; Explosion-proof PLC switch board is provided with the explosion-proof window of observing display screen 7 simultaneously, is convenient to the staff and observes various data.

Surveillance center's computer 4 also is connected with background server 9, and background server 9 stability are high, safety is good, can the data longer-term storage that 4 transmission of Surveillance center's computer come be preserved, and as backup, is convenient to call analysis.

The model of firedamp sensor is among the present invention: KJ101-45B; The model of carbon monoxide transducer is: GTH500; The model of air velocity transducer is: KGF2; The model of temperature pick up is: KGW10; The model of positive/negative pressure sensor is: KGY5; The model of Smoke Sensor is: GQQ0.1.

Claims

1. coal mine air-shaft explosion proof door monitoring system; Comprise: sensor groups (1), camera (2), PLC (3) and Surveillance center's computer (4); It is characterized in that: said sensor groups (1) includes air velocity transducer, carbon monoxide transducer, Smoke Sensor, firedamp sensor, temperature pick up and positive/negative pressure sensor; The sensor is installed on the coal mine air-shaft explosion proof door, and the signal output part of sensor groups (1) links to each other with the input of intrinsic safety input isolation module (5);

Also be provided with camera (2) on the said coal mine air-shaft explosion proof door; Signal output part serial connection video processor (6) back of said camera (2) links to each other with the input of intrinsic safety input isolation module (5), and the output of said intrinsic safety input isolation module (5) links to each other with the signal input port of PLC (3);

The communication terminal of said PLC (3) links to each other with the Surveillance center's computer (4) that is installed in the mine supervision center through optical cable, and PLC (3) also is connected with display screen (7).

2. coal mine air-shaft explosion proof door monitoring system according to claim 1; It is characterized in that: said coal mine air-shaft explosion proof door is equipped with explosion proof door control motor (8), and the control end of said explosion proof door control motor (8) links to each other with the signal output port of PLC (3).

3. coal mine air-shaft explosion proof door monitoring system according to claim 1 and 2; It is characterized in that: said PLC (3), intrinsic safety input isolation module (5), video processor (6) and display screen (7) are installed in the explosion-proof PLC switch board, and said explosion-proof PLC switch board is provided with the explosion-proof window of observing display screen (7).

4. coal mine air-shaft explosion proof door monitoring system according to claim 3 is characterized in that: said Surveillance center computer (4) also is connected with background server (9).